Atty. John Thomas Brennan

Atty. John Thomas Brennan

John Thomas Brennan is a lawyer practicing litigation. John received a B.A. degree from Catholic University of America in 1985, and has been licensed for 36 years.

Brooklyn Brooklyn 36 yrs experience 36 year
Call (844) 588-2324 Book Appointment

Profile Summary

About John Thomas Brennan at a glance

John Thomas Brennan is a Member based in Brooklyn, New York, practicing at The Law Offices of John T. Brennan, P.C.. They have 36+ years of legal experience, licensed to practice since 1990. Their practice focuses on litigation. Admitted to practice in New York (1990), U.S. District Court, Southern District of New York (1994), and U.S. District Court, Eastern District of New York (1999). Educated at Catholic University of America (J.D., 1989) and Catholic University of America (B.A., 1985). Serands clients in Brooklyn, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Thomas Brennan is a lawyer practicing litigation
  • John received a B.A. degree from Catholic University of America in 1985, and has been licensed for 36 years
  • John practices at The Law Offices of John T. Brennan, P.C. in Brooklyn, NY

Practice Areas Explained

John Thomas Brennan's Areas of Practice

Each practice area below reflects the types of cases John Thomas Brennan handles, with a brief overview of what that area of law covers.

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John Thomas Brennan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Brooklyn are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New York courts without local counsel or pro hac vice admission.

Looking for additional New York attorneys? Browse all attorneys in Brooklyn or all attorneys in New York.

Frequently Asked

Common questions about John Thomas Brennan

Where is John Thomas Brennan's law office located?
John Thomas Brennan's law practice is located in Brooklyn, New York. The firm is The Law Offices of John T. Brennan, P.C.. You can contact the office directly through this profile page.
What practice areas does John Thomas Brennan handle?
John Thomas Brennan focuses on litigation. Each practice area listed reflects experience handling cases of that type in New York.
How long has John Thomas Brennan practiced law?
John Thomas Brennan has 36+ years of legal experience and has been licensed since 1990.
Where did John Thomas Brennan go to law school?
John Thomas Brennan earned their education at (J.D., 1989); (B.A., 1985).
How can I contact John Thomas Brennan for a consultation?
You can contact John Thomas Brennan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Practice Areas

Education

J.D.
Catholic University of America
- 1989
B.A.
Catholic University of America
- 1985

Bar Admissions

New York
Admitted: 1990
U.S. District Court, Southern District of New York
Admitted: 1994
U.S. District Court, Eastern District of New York
Admitted: 1999

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